Attachment for corn cultivators



sept. 15, 19,25. 1,553,685 w. B. GRESHAM ATTACHMENT FOR CORN CULTIVATORS Filed April 18, 19,22

. j WITNESSES V INVLNIUR Patented Sept. l5, 1,925. e

UNITED STATES vPartien cerise,

WALTER BURGESS GRESHAM, OF ATLANTA, ILLINOIS.

ATTACHMENT FOR CORN CULTIVATORS.

Application filed April 18, 1922. Serial No. 554,542.

To all whom t may concern: Figure 3 is a sectional view, `taken sub-y Be it known that I, WALTER BUnGEsS stantially along the line 3-3 of 'Figure 2, GRESHAM, a citizen of the `United States, lnlieu of the usual shallow cutting cul and a resident of Atlanta, in the county` tivator blades or shovels, illustra-tion of of Logan and State of Illinois, have inwhich has been omitted from the drawings7 60 vented certain new and useful lmprovemy invention provides a plurality of earth ments in Attachments for Corn Cultivators, working members or blades, such as indiof which the following is a specification. cated generally at 10fand which is best seen My invention relates to improvements in in Fig. 1. Each blade 10 comprises a share 10 cultivators, and it consists in the combina- 11 provided with a land side 12 diver-ging tions, constructions and arrangements herefrom the body of the share. A moldboard in described and claimed. 13 is adapted to be detachably secured to An object of my invention is to provide the body of the share through the agency an attachment having means for replacing of a connecting plate 14 which has a por- 15 the usual shovels or blades of a cultivator tion thereof adapted to be secured to the 7o of ordinary construction, whereby the culmoldboard by means of two bolts 15 or like tivator is adapted to break and turn the fastening .elements and another portion soil more eifectively than is possible with adapted to be attached tothe body of the an ordinary cultivator and to break down share through the agency of two other bolts and cover weeds between rows of plants indicated at 16.

which would notbe covered by the blades `Each of the blad-es 10 is provided with or shovels of an ordinary cultivator. a lower section or stub 17 of a shank for A further object of my invention is to connecting the blade with one of the beams provide an attachment of the character de- 4. Each section 17 -is secured tov the land scribed which comprises means adapted to side of the blade, as by means of rivets 18 S0 be substituted for the usual blades or shovels or like fastening elements. e of a cultivator of ordinary construction, Each lower section 17 is enlarged adjawithout any extensive changes, if any, being cent to its upper end to provide a hinge required in the construction of the oultivaportion 19 provided with an ear 2O extendf tor. ing laterally of one end thereof and swing- 85 A stillfurther object of my invention is ingly supporting at its other edge, as by to provide an attachment of the character -means of a pintle 21, a cooperating hinge described for cultivators in which the means plate or clamping member 22 which is proto be substituted for the usual cultivator vided with an earv 23 adapted to be posishovels or blades can be quickly and easily tioned in alinement with the ear 20 when 90 converted from blades adapted to penetrate the hinge plate or clamping member 22 has into the earth to a relatively great depth, been` swung toward the hinge portion 19 to in the manner of plow blades, into blades clampingly embrace the lower portion of adapted to cut the earth along the surface. an intermediate shank section 24.

4o Other objects and advantages willA be ap- It will be obvious that the intermediate 95 parent from the following description, and section 24 will be releasably attached to the the novel features of the invention will be lower section 17 and held against movement outlined more particularly in the appended relatively to the latter when a coupling bolt claims. 25 is projected through the alined ears My invention is illustrated in the accom- 20-23 and a nut thereon is tightened and 10o panying drawings forming a part of this a pin 26 extending through a transverse application, in which: opening formed in the intermediate section Figure 1 is a perspective view showing has the ends thereof resting in alined seat-s a fragmentary portion of a cultivator beam, 27 and 28 respectively in the hinge member together with associated elements of the at- 19 and the clamping member 22, as clearly 105 tachment in detached or separated position, shown in Figs. 2 and 3.

Figure 2 is a side elevation, showing a The intermediate section 24 is connected fragmentary portion of a blade comprised adjacent to its upper end with an upper secin the attachment, together with a portion tion in any suitable known manner, whereby of a shank appurtenant thereto, the angular relation of the section 24 to 110 the upper section may be varied to vary the depth to which the blade will penetrate below the surface of the earth and whereby the intermediate section 24 will be releasably held in adjusted angular relation to the upper section of the shank. In Fig. l., I show an upper section 29 having the upper and lower end portions thereof offset in respect to each other. The upper section 1?9 is provided with radial teeth 30 adjacent to its lower end on the side thereof 4which will be contiguous to the upp'efr portion of an intermediate section 24. The Ilatter is provided with radially7 esten'din'g` teeth 3l adapted to engage the teeth 30 when the upper portion of the intermediate section 24- is clamped against the lower portion of the section 29 by means of a clamping fbolt 32, or the like. It will be appa-rent that the angular relation Lof the vintermediate section 24 to the upper section 29 may be varied at will when the construction just Edescribed is provided. A 'clamping plate 33 rhas p'aifrs of laterally extending parallel "lugs 34--34 and -35 respectively,- at the opposite ends thereof. The pairs of lugs are :adapted to embrace both the upper end portion 'of rthe section 29 and a beam 4, anda clamping bolt 36 is projected through the. beam 4, the upper end portion of the 'section 29, the clamping plate 33, whereby the section 29 will be releasably secured tothe beam 4 and held against movement relatively to 'the latter when a nut 37 in threaded engagement with the bolt 36 `is `tightened against the plate 33. rIhe beam 4 may ybe a usual part of a cultivator not shown.

From ythe foregoing description of 4the various parts of the device, the operation thereof may be readily understood.

The blades comprised in my attachment will cut or penetrate into the earth to a greater depth and will overturn the -soil broken thereby more effectively than the usual cultivator shovels or blades. Vhen it is desired lto loosen the soilcloseto the surface with myattachment, it is only necessary thatthe bolts 16 be detached from the shares 11 and the moldboard 13 detached. The blades comprised in my attachment will then be converted linto surface yblades and can be used assueh.

Obviously, my invention is susceptible of embodiment in forms other than that illustrated in the accompanying drawings and described herein, and I therefore consider as my own, all nfiodifications and adaptations of the form herein described and illustrated as fairly fall within the scope of the appended claims.

I claim 1. In a cultivator, a blade comprising a share having a land lside, a moldboard detachab'ly secured to the share, and a shank for connecting Athe land side of said blade with a supporting member, said shank consisting vof an upper sec-tion having upper and lower end portions offset in respect to eachother, :a lower section secured to the land side, an intermediate section releasably secured at its lower end to the upper end of the lower section, clamping means for -detachably securing said upper section to a support, and a horizontal fastening element for releasably securing `the upper end portion of the intermediate section against the lower end portion of the upper section, said upper section andsaid inter-- mediate section having` teeth on the said yend portions thereof adapted `to coengage'to hold the intermediate section i-n `adjusted angular relation to the upper section.

2. In a cultivator, a shank 'comprising .a lower section adapted to be secured at its lowerendto a blade and a second section having a swinging clamping member attached to the lower end portion thereof, said elampingmember being adapted to swing-to .and :from position ite-clamp the upper end portion of the lower ysection against the lower end portion of the second section, means for releasably holding the clamping member against movement/from position to clamp the `lower vsection l against the second section, means carried by saidlowerlsection for Yengaging with the second section and the clamping member to aid said clamping member and said second-section in holding the second section and the lower section against relative movement, and whereby said second section may be attached to avsupport.

VALTER BURGESS GRESHAM.

meansl 

